Aquaculture tank, aquaculture method and aquaculture ship

Abstract

The present application relates to the technical field of aquaculture ship, in particular to an aquaculture cabin, an aquaculture method and an aquaculture ship, the aquaculture cabin comprises an aquaculture cabin body, a fish collecting tank, a fish blocking plate, a driving mechanism and a fish suction device, the bottom of the aquaculture cabin body is a downward conical barrel type structure, the fish collecting tank is arranged at the bottom of the conical barrel type structure, after the driving mechanism drives the fish blocking plate to move away from the fish collecting tank, the interval between the fish blocking plate and the tank wall of the fish collecting tank forms a channel for the dead fish in the aquaculture cabin body to slide into the fish collecting tank, the dead fish falling to the bottom of the conical barrel type structure slides into the fish collecting tank through the channel, the driving mechanism drives the fish blocking plate to move close to the fish collecting tank, so as to close the channel, the fish suction device can suck the dead fish in the fish collecting tank away, and the fish blocking plate can prevent the fish suction device from sucking the live fish in the aquaculture cabin body into the fish collecting tank when the fish suction device works; therefore, the aquaculture cabin can clean the dead fish sinking to the bottom of the aquaculture cabin body in time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aquaculture ships, in particular to an aquaculture cabin, an aquaculture method and an aquaculture ship. BACKGROUND

[0002] The aquaculture ship is a deep-sea offshore aquaculture engineering equipment, which has the advantages of small mobility, small pollution and high efficiency. The deep-sea water far from the mainland has juvenile water source, suitable regional or ocean current water temperature, and is far from land source pollution and viruses, which is an important advantage of offshore green aquaculture equipment development. According to the environmental requirements of the cultured objects, suitable water areas are found for aquaculture production, which can be anchored independently, and the production can be transferred according to the change of water temperature in different seasons, and the adverse environmental effects such as typhoon and red tide can be avoided.

[0003] A plurality of aquaculture cabins can be arranged on the aquaculture ship, and fish culture is carried out in the aquaculture cabins. During the fish culture process, some fish will die accidentally. At present, the dead fish in the aquaculture process need to be salvaged after floating to the water surface in the aquaculture cabin. However, the dead fish will first sink to the bottom of the aquaculture cabin. After soaking for a period of time, the dead fish will be decomposed by microorganisms, then gas will be generated, the specific gravity of the dead fish will be reduced, and at this time the air in the water will enter the body of the dead fish, causing the dead fish to rot, and slowly floating to the water surface. Therefore, if the dead fish sunk to the bottom of the aquaculture field is not cleaned in time, the water in the aquaculture cabin will be seriously polluted after the dead fish rots, resulting in frequent water change in the aquaculture cabin and increased aquaculture cost. SUMMARY

[0004] The technical problem to be solved by the present application is that the dead fish in the aquaculture cabin needs to be salvaged after floating to the water surface, and the dead fish will rot before floating to the water surface, polluting the water in the aquaculture cabin.

[0005] In order to solve the above technical problems, the purpose of the present application is to provide an aquaculture cabin, which comprises:

[0006] An aquaculture cabin body, the bottom of the aquaculture cabin body is a conical barrel type structure which is concave downward;

[0007] A fish collecting groove is arranged at the bottom of the conical barrel type structure;

[0008] A fish blocking plate is arranged on the guide structure extending outward from the fish collecting groove, and the fish blocking plate is slidably arranged on the guide structure;

[0009] A driving mechanism is arranged to drive the fish barrier to move away from the fish collecting tank so as to form a gap between the fish barrier and the tank wall of the fish collecting tank, the gap forming a passage for the dead fish in the culture tank body to slide into the fish collecting tank; the driving mechanism is also arranged to drive the fish barrier to move towards the fish collecting tank so as to cover the tank opening of the fish collecting tank.

[0010] A fish suction device is arranged, and a suction port of the fish suction device is communicated with the bottom of the fish collecting tank.

[0011] As a preferred solution, the guide structure comprises a water supply pipe, a lower end of the water supply pipe is fixedly arranged through the bottom wall of the fish collecting tank, an upper end of the water supply pipe extends upwards out of the fish collecting tank, and the fish barrier is sleeved on the outside of the water supply pipe.

[0012] As a preferred solution, a top end of the water supply pipe is closed, and a plurality of water outlets are arranged on the circumferential side of the water supply pipe.

[0013] The driving mechanism comprises a telescopic driving device, a lower end of the telescopic driving device is connected to the top end of the water supply pipe, a first connecting rod extending to one side of the telescopic driving device is connected to an upper end of the telescopic driving device, a second connecting rod extending downwards is connected to the first connecting rod, and a lower end of the second connecting rod is connected to the fish barrier.

[0014] As a preferred solution, a middle part of the first connecting rod is fixedly arranged at the upper end of the telescopic driving device, and two second connecting rods are arranged, and the two second connecting rods are respectively arranged at two ends of the first connecting rod.

[0015] As a preferred solution, each of the water outlets is arranged at a position higher than the fish collecting tank.

[0016] As a preferred solution, a square box is fixedly arranged at a lower end of the bottom wall of the fish collecting tank, an inner cavity of the square box is communicated with a pipe cavity of the water supply pipe, and a tank wall of the square box is connected with a water supply system for supplying water into the square box.

[0017] As a preferred solution, the water supply system comprises a water supply pump, a water inlet pipe and a first control valve, a water inlet end of the water supply pump is communicated with seawater, a water outlet end of the water supply pump is connected with the water inlet pipe, an end of the water inlet pipe away from the water supply pump is connected with the first control valve, and the first control valve is connected with the square box.

[0018] As a preferred solution, a tank wall of the square box is connected with a water pumping system for pumping water out of the square box.

[0019] As a preferred solution, the box wall of the square box is connected with an oxygen supply system for filling oxygen into the square box.

[0020] As a preferred solution, the fish barrier is provided with a plurality of filter holes.

[0021] A breeding method using the breeding cabin, the breeding method comprising the following steps:

[0022] Step S1, driving the fish barrier to rise by using the driving mechanism, so that the fish barrier is kept in the raised state, so that the dead fish in the breeding cabin body can slide into the fish collecting groove in time;

[0023] Step S2, driving the fish barrier to descend by using the driving mechanism, covering the fish barrier on the slot opening of the fish collecting groove, avoiding the live fish in the breeding cabin body from entering the fish collecting groove;

[0024] Step S3, starting the fish suction device to suck the dead fish in the fish collecting groove out of the fish collecting groove;

[0025] Step S4, repeating the steps S1 to S3.

[0026] A breeding ship is provided with a plurality of the above-mentioned breeding cabins, and the outer circumferential side of the fish collecting groove of each breeding cabin is fixed with a plurality of reinforcing rib plates, and each reinforcing rib plate is fixedly connected with the ship body structure of the breeding ship.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] The aquaculture tank of the present application comprises an aquaculture tank body, a fish collecting groove, a fish blocking plate, a driving mechanism and a fish suction device, the bottom of the aquaculture tank body is a downwardly recessed conical barrel structure; the fish collecting groove is arranged at the bottom of the conical barrel structure, the dead fish in the aquaculture tank body will sink to the bottom of the aquaculture tank body in the early stage of death and slide to the direction of the fish collecting groove under the action of its own gravity along the inclined surface of the conical barrel structure; the fish collecting groove is provided with a guide structure extending outwardly, the fish blocking plate is slidingly arranged on the guide structure, after the driving mechanism drives the fish blocking plate to move away from the fish collecting groove, the interval between the fish blocking plate and the groove wall of the fish collecting groove forms a channel for the dead fish in the aquaculture tank body to slide into the fish collecting groove, the dead fish falling to the bottom of the conical barrel structure slides into the fish collecting groove through the channel, after the channel is kept open for a period of time, the driving mechanism drives the fish blocking plate to move towards the fish collecting groove, so that the fish blocking plate covers the slot of the fish collecting groove and closes the channel, then the fish suction device is started, the fish suction device can suck away the dead fish in the fish collecting groove, and the fish blocking plate covering the fish collecting groove can prevent the live fish in the aquaculture tank body from being sucked into the fish collecting groove when the suction device works; therefore, the aquaculture tank of the present application can clean the dead fish sinking to the bottom of the aquaculture tank in time, avoid the pollution of the water in the aquaculture tank caused by the decay of the dead fish, and reduce the aquaculture cost. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic view of the aquaculture tank of the present application;

[0030] Figure 2 It is a top view of the bottom of the aquaculture tank;

[0031] Figure 3 It is a schematic view of the installation position of the water supply module at the bottom of the aquaculture tank;

[0032] Figure 4 It is a schematic view of the structure of the reinforcing rib plate;

[0033] Figure 5 It is a schematic view of the structure of the reinforcing plate;

[0034] In the figure, 1 is the aquaculture tank body, 11 is the fish collecting groove, 2 is the fish blocking plate, 3 is the driving mechanism, 31 is the telescopic driving device, 32 is the first connecting rod, 33 is the second connecting rod, 4 is the water supply pipe, 5 is the square box body, 6 is the reinforcing rib plate, 61 is the reinforcing rib body, 62 is the reinforcing plate, 71 is the water inlet pipe, 72 is the first control valve, 73 is the water suction pipe, 74 is the second control valve, 75 is the oxygen supply pipe, 81 is the fish suction pipe, 82 is the third control valve and 9 is the ship body side plate. DETAILED DESCRIPTION

[0035] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0036] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. It should be understood that the terms "first", "second", etc. are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0037] As shown in Figure 1 , Figure 2 , a preferred embodiment of the present application is a breeding tank, comprising:

[0038] The breeding tank body 1 has a conical barrel structure at the bottom;

[0039] The fish collecting groove 11 is arranged at the bottom of the conical barrel structure;

[0040] The fish blocking plate 2 is arranged on the guide structure extending outward from the fish collecting groove 11, and the fish blocking plate 2 is slidably arranged on the guide structure;

[0041] The driving mechanism 3 is used to drive the fish blocking plate 2 to move away from the fish collecting groove 11, so as to form a gap between the fish blocking plate 2 and the groove wall of the fish collecting groove 11, and the gap forms a channel for the dead fish in the breeding tank body 1 to slide into the fish collecting groove 11; the driving mechanism 3 is also used to drive the fish blocking plate 2 to move towards the fish collecting groove 11, so as to cover the fish collecting groove 11;

[0042] The fish suction device has a suction port in communication with the bottom of the fish collecting groove 11.

[0043] The dead fish in the culture tank body 1 sinks to the bottom of the culture tank body 1 at the initial stage of death and slides along the inclined surface of the conical cylinder structure to the direction of the fish collecting groove 11; after the driving mechanism 3 drives the fish blocking plate 2 to move away from the fish collecting groove 11, the interval between the fish blocking plate 2 and the groove wall of the fish collecting groove 11 forms a channel for the dead fish in the culture tank body 1 to slide into the fish collecting groove 11, the dead fish falling to the bottom of the conical cylinder structure slides into the fish collecting groove 11 through the channel, after the channel is kept open for a period of time, the driving mechanism 3 drives the fish blocking plate 2 to move to the direction close to the fish collecting groove 11, so that the fish blocking plate 2 covers the slot of the fish collecting groove 11 to close the channel, and then the fish suction device is started to suck the dead fish in the fish collecting groove 11 away, and the fish blocking plate 2 covering the fish collecting groove 11 can prevent the live fish in the culture tank body 1 from being sucked into the fish collecting groove 11 when the suction device is working; therefore, the culture tank of the present application can clean the dead fish sinking to the bottom of the culture tank in time, avoid the pollution of the water in the culture tank caused by the decay of the dead fish, and reduce the breeding cost.

[0044] The guiding structure can be arranged in various ways, for example, a plurality of vertical step guiding columns are arranged at intervals on the outside of the fish groove, a plurality of guiding holes are arranged on the fish blocking plate 2, and the guiding columns are arranged in the guiding holes to realize the guiding and limiting of the fish blocking plate 2; since the water supply pipe 4 for supplying water into the culture tank is also arranged at the bottom of the culture tank body 1, in the present embodiment, the guiding structure includes the water supply pipe 4, the lower end of the water supply pipe 4 is fixedly arranged in the bottom wall of the fish collecting groove 11, the upper end of the water supply pipe 4 extends upwardly out of the fish collecting groove 11, and the fish blocking plate 2 is sleeved on the outside of the water supply pipe 4. Specifically, the middle part of the fish blocking plate 2 is provided with a guiding hole, and the water supply pipe 4 is arranged in the guiding hole, so that the water supply pipe 4 not only plays a water supply role, but also plays a guiding and limiting role for the fish blocking plate 2, so that the arrangement of the guiding structure of the culture tank of the present application is more compact. The water supply pipe 4 can be a circular pipe or a polygonal pipe body, when the water supply pipe 4 is a circular pipe, a guiding strip arranged along the length of the water supply pipe 4 in a square shape can be arranged on the outside of the water supply pipe 4, a guiding groove is arranged on the hole wall of the guiding hole of the fish blocking plate 2, and the guiding strip is arranged in the guiding groove, so as to realize the stable guiding and limiting of the fish blocking plate 2 by the water supply pipe 4.

[0045] In the embodiment, the top end of the water supply pipe 4 is closed, and the periphery of the water supply pipe 4 is provided with a plurality of water outlets; the driving mechanism 3 comprises a telescopic driving device 31, the lower end of the telescopic driving device 31 is connected to the top end of the water supply pipe 4, the upper end of the telescopic driving device 31 is connected to a first connecting rod 32 extending to one side of the telescopic driving device 31, the first connecting rod 32 is connected to a second connecting rod 33 extending downward, and the lower end of the second connecting rod 33 is connected to the fish blocking plate 2. Specifically, the upper end of the water supply pipe 4 is fixed with a cover plate, the lower end of the telescopic driving device 31 is fixed on the cover plate, the telescopic driving device 31 is vertically arranged, the telescopic driving device 31 is elongated to drive the fish blocking plate 2 to move upward through the first connecting rod 32 and the second connecting rod 33, so that the interval between the fish blocking plate 2 and the groove wall of the fish collecting groove 11 is greater than the body width of the fish, ensuring that the dead fish can smoothly slide into the fish collecting groove 11 through the channel between the fish blocking plate 2 and the fish collecting groove 11; when the fish collecting groove 11 is in the state of collecting dead fish, the telescopic driving device 31 remains in the elongated state, and the fish suction device is closed; when the fish collecting groove 11 is in the cleaning state, the telescopic driving device 31 is in the shortened state, and the fish suction device is opened. Specifically, the telescopic driving device 31 is a hydraulic cylinder that can be used underwater.

[0046] In the embodiment, in order to ensure the stability of the driving mechanism 3, the middle part of the first connecting rod 32 is fixed to the upper end of the telescopic driving device 31, and the second connecting rod 33 is provided with two second connecting rods 33, which are respectively arranged at the two ends of the first connecting rod 32.

[0047] When the fish collecting groove 11 is in the state of collecting dead fish, in order to avoid the dead fish in the fish collecting groove 11 from blocking the water outlets of the water supply pipe 4, in the embodiment, the setting positions of the water outlets are all higher than the fish collecting groove 11.

[0048] In order to facilitate the connection of the water supply system and the water supply pipe 4, in the embodiment, the bottom wall of the fish collecting groove 11 is fixed with a square box body 5, the inner cavity of the square box body 5 is communicated with the pipe cavity of the water supply pipe 4, and the side wall of the square box body 5 is connected with the water supply system for filling water into the square box body 5. Specifically, the wall of the square box body 5 is a plane, the connection between the plane structure and the end of the water pipe of the water supply system is more convenient, and there is no need to cut the curved type of intersecting line. Specifically, the water supply system comprises a water supply pump, a water inlet pipe 71 and a first control valve 72, the water inlet of the water supply pump is communicated with seawater, the water outlet of the water supply pump is connected with the water inlet pipe 71, one end of the water inlet pipe 71 away from the water supply pump is connected with the first control valve 72, and the first control valve 72 is connected with the square box body 5. The pipe diameter of the water inlet pipe 71 is 762 mm, the pipe wall thickness of the water inlet pipe 71 is 16 mm, the first control valve 72 for controlling whether the water inlet pipe 71 and the square box body 5 are communicated is arranged between the water inlet pipe 71 and the square box body 5, the first control valve 72 is a remote control valve, the opening and closing of the first control valve 72 can be remotely controlled according to the actual operation condition, and one end of the water inlet pipe 71 away from the square box body 5 is connected with the water supply system.

[0049] Further, in order to facilitate the pumping of water in the breeding tank body, the side wall of the square tank 5 is connected with a water pumping system for pumping water in the square tank 5. Specifically, the water pumping system includes a water pumping pipe 73 and a second control valve 74 arranged on the water pumping pipe 73. The end of the water pumping pipe 73 is welded and fixed to the side wall of the square tank 5. The pipe diameter of the water pumping pipe 73 is 762 mm, and the pipe wall thickness of the water pumping pipe 73 is 16 mm. The second control valve 74 is also a remote control valve. The end of the water pumping pipe 73 away from the square tank 5 is connected with the water pumping system.

[0050] In order to facilitate oxygen supply to the breeding tank body 1, in the present embodiment, the tank wall of the square tank 5 is connected with an oxygen supply system for supplying oxygen to the square tank 5. Specifically, the tank wall of the square tank 5 is connected with an oxygen supply pipe 75 connected with the oxygen supply system.

[0051] If the fish blocking plate 2 is a closed plate, when the fish collecting groove 11 is in a cleaning state, the negative pressure generated by the fish suction device needs to be discharged through the gap between the fish blocking plate 2 and the groove wall of the fish collecting groove 11. At this time, if the gap between the fish blocking plate 2 and the groove wall of the fish collecting groove 11 is too small, the flow rate at the gap will be too large, which will generate vortex flow and other flow states, which is not conducive to the growth of fish in the breeding tank. If the gap is too large, live fish may enter the fish collecting groove 11 through the gap, causing harm to the live fish. In the present embodiment, the fish blocking plate 2 is provided with a plurality of filter holes. The arrangement of the filter holes enables the negative pressure generated by the fish suction device to be evenly distributed in each filter hole of the fish blocking plate 2, avoiding excessive flow rate at a certain position near the rain blocking plate, and being conducive to the growth of fish in the breeding tank. Specifically, in the present embodiment, the material of the fish blocking plate 2 is 316L stainless steel, the thickness of the fish blocking plate 2 is 2 mm, and the diameter of the filter hole of the fish blocking plate 2 is 30 mm. The fish suction device includes a suction pump and a fish suction pipe 81 in communication with the suction pump. The end of the fish suction pipe 81 away from the suction pump is connected with a third control valve. The third control valve is in communication with the bottom of the fish collecting groove 11. In order to prevent dead fish entering the fish suction pipe 81 from entering the suction pump, in the present embodiment, a fish collecting box is connected with the suction pump. The fish collecting box is provided with a closed cavity. One side of the fish collecting box is provided with a first opening. A filter screen is fixed in the first opening. The suction pump is connected at the first opening. The filter screen can block dead fish in the fish collecting box from entering the suction pump. The other side of the fish collecting box is provided with a second opening connected with the first end of the fish suction pipe 81. The second end of the fish suction pipe 81 is in communication with the fish collecting groove 11. The bottom of the fish collecting box is provided with a sealable sealing cover. After the collection of dead fish is completed, the sealing cover can be opened to pour out the dead fish in the fish collecting box.

[0052] An embodiment of a breeding method using the above-mentioned breeding tank. The breeding method comprises the following steps:

[0053] Step S1, driving the fish barrier 2 to rise by the driving mechanism 3, so that the fish barrier 2 is kept in the raised state, so that the dead fish in the culture tank body 1 can be timely slid into the fish collecting groove 11;

[0054] Step S2, driving the fish barrier 2 to descend by the driving mechanism 3, covering the fish barrier 2 on the slot of the fish collecting groove 11, avoiding the live fish in the culture tank body 1 from entering the fish collecting groove 11;

[0055] Step S3, opening the fish suction device, sucking the dead fish in the fish collecting groove 11 out of the fish collecting groove 11;

[0056] Step S4, repeating steps S1 to S3.

[0057] Specifically, the fish barrier 2 keeps the raised state for less than 12 hours, that is, the fish collecting groove 11 is cleaned twice a day, so that the dead fish can be timely cleaned before it rots.

[0058] An embodiment of a culture ship includes the culture tank described above, and the outer periphery of the fish collecting groove 11 of each culture tank is fixed with a plurality of reinforcing ribs 6, and each reinforcing rib 6 is fixedly connected with the hull structure of the culture ship. Specifically, as shown in Figures 2 to 3 , in this embodiment, the fish collecting groove 11 is a cylindrical groove, the fish barrier 2 is a ring-shaped plate, and the outer periphery of the fish collecting groove 11 is fixed with a plurality of reinforcing ribs 6 arranged along the circumference of the fish collecting groove 11. In order to facilitate assembly, in this embodiment, the fish collecting groove 11, the square box 5, the water supply pipe 4, the fish barrier and the driving mechanism are processed into a bottom water supply module whole before being assembled to the bottom of the culture tank. When installing the bottom water supply module, the bottom water supply module whole is hoisted to the bottom of the ship body and each reinforcing rib 6 is welded on the side plate of the ship body, so as to facilitate the overall installation of the bottom water supply module. As shown in Figure 4 、 Figure 5 , the reinforcing rib plate 61 and the reinforcing plate 62, the reinforcing plate 62 is welded on one side of the reinforcing rib body 61, and the reinforcing plate 62 is an isosceles trapezoidal plate.

[0059] In summary, the dead fish in the culture tank body 1 of the culture tank of the application will sink to the bottom of the culture tank body 1 in the early stage of death, and slide to the direction of the fish collecting groove 11 along the inclined surface of the conical cylinder structure under the action of its own gravity; after the driving mechanism 3 drives the fish blocking plate 2 to move away from the fish collecting groove 11, the interval between the fish blocking plate 2 and the groove wall of the fish collecting groove 11 forms a channel for the dead fish in the culture tank body 1 to slide into the fish collecting groove 11, the dead fish that falls to the bottom of the conical cylinder structure slides into the fish collecting groove 11 through the channel, after the channel remains open for a period of time, the driving mechanism 3 drives the fish blocking plate 2 to move towards the fish collecting groove 11, so that the fish blocking plate 2 covers the slot of the fish collecting groove 11, closes the channel, and then the fish suction device is opened, the fish suction device can suck the dead fish in the fish collecting groove 11 away, the fish blocking plate 2 covering the fish collecting groove 11 can prevent the live fish in the culture tank body 1 from being sucked into the fish collecting groove 11 when the suction device is working; therefore, the culture tank of the application can clean the dead fish that sinks to the bottom of the culture tank in time, avoid the pollution of the water body in the culture tank caused by the rotting of the dead fish, and reduce the breeding cost.

[0060] The above description is only the preferred embodiments of the application, and it should be pointed out that those skilled in the art can make some improvements and replacements without departing from the technical principles of the application, and these improvements and replacements should also be considered as the protection scope of the application.

Claims

1. A farming pod, characterized in that, The application relates to a fish breeding tank, which comprises the following components: a breeding tank body (1), the bottom of the breeding tank body (1) being in a downwardly concave conical barrel type structure; a fish collecting groove (11) arranged at the bottom of the conical barrel type structure; a fish blocking plate (2), a guide structure extending outwardly from the fish collecting groove (11) being arranged on the periphery of the fish collecting groove (11) or in the fish collecting groove (11), and the fish blocking plate (2) being slidingly arranged on the guide structure; a driving mechanism (3) for driving the fish blocking plate (2) to move away from the fish collecting groove (11) so that a gap is formed between the fish blocking plate (2) and the groove wall of the fish collecting groove (11), and the gap forms a channel for dead fish in the breeding tank body (1) to slide into the fish collecting groove (11); the driving mechanism (3) is also used for driving the fish blocking plate (2) to move close to the fish collecting groove (11) so that the fish blocking plate (2) covers the groove opening of the fish collecting groove (11); a fish suction device, the suction port of the fish suction device being communicated with the bottom of the fish collecting groove (11); the guide structure comprises a water supply pipe (4), the lower end of the water supply pipe (4) being fixedly arranged in the bottom wall of the fish collecting groove (11), the upper end of the water supply pipe (4) extending upwardly out of the fish collecting groove (11), and the fish blocking plate (2) being sleeved on the outer side of the water supply pipe (4); the top end of the water supply pipe (4) is closed, and a plurality of water outlet holes are arranged on the periphery of the water supply pipe (4); the driving mechanism (3) comprises a telescopic driving device (31), the lower end of the telescopic driving device (31) being connected to the top end of the water supply pipe (4), the upper end of the telescopic driving device (31) being connected with a first connecting rod (32) extending to one side of the telescopic driving device (31), the first connecting rod (32) being connected with a second connecting rod (33) extending downwardly, and the lower end of the second connecting rod (33) being connected with the fish blocking plate (2); the arrangement positions of the water outlet holes are all higher than the fish collecting groove (11); the lower end of the bottom wall of the fish collecting groove (11) is fixedly connected with a square box body (5), the inner cavity of the square box body (5) is communicated with the pipe cavity of the water supply pipe (4), and the box wall of the square box body (5) is connected with a water supply system for filling water into the square box body (5); the box wall of the square box body (5) is connected with an oxygen supply system for filling oxygen into the square box body (5).

2. The farming tank according to claim 1, characterized in that the middle part of the first connecting rod (32) is fixed on the upper end of the telescopic driving device (31), and the second connecting rod (33) is provided with two second connecting rods (33) arranged at the two ends of the first connecting rod (32) respectively.

3. The farming tank according to claim 1, characterized in that, the water supply system comprises a water supply pump, an inlet pipe (71) and a first control valve (72), the water inlet end of the water supply pump is communicated with seawater, the water outlet end of the water supply pump is connected with the inlet pipe (71), one end of the inlet pipe (71) away from the water supply pump is connected with the first control valve (72), and the first control valve (72) is connected with the square box body (5).

4. The farming tank according to claim 1, characterized in that, The box wall of the square box (5) is connected with a water pumping system for pumping water out of the square box (5).

5. The aquaculture pen of claim 1, wherein, The fish barrier (2) is provided with a plurality of filter holes.

6. A method of farming, characterized by, The aquaculture method comprises the following steps: Step S1, driving the fish barrier (2) to rise by the driving mechanism (3), so that the fish barrier (2) is kept in the raised state, so that the dead fish in the aquaculture tank body (1) can slide into the fish collecting groove (11) in time; Step S2, driving the fish barrier (2) to descend by the driving mechanism (3), covering the fish barrier (2) on the slot opening of the fish collecting groove (11), so as to prevent the live fish in the aquaculture tank body (1) from entering the fish collecting groove (11); Step S3, opening the fish suction device to suck the dead fish in the fish collecting groove (11) out of the fish collecting groove (11); Step S4, repeating the steps S1 to S3.

7. A fish farm vessel, characterised in that The aquaculture ship is provided with a plurality of aquaculture tanks according to any one of claims 1 to 5, and a plurality of reinforcing rib plates (6) are fixed to the outer circumferential side of the fish collecting groove (11) of each aquaculture tank, and each reinforcing rib plate (6) is fixedly connected with the ship body structure of the aquaculture ship.

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